*{
    margin:0px;
    padding:0px;
}
.all{
    width:700px;
    margin:0px auto;
    background:white;
    box-sizing: border-box;
    margin-top:10px;
}
.fl{
    float:left;
}
.fr{
    float:right;
}
h4{
    color:#666666;
}
.clearfix:after{
    content:" ";
    clear:both;
    display:table;
}
.all li{
    float:left;
    padding: 10px;
    width:50%;
    box-sizing: border-box;
    font-size:12px;
}
.all img{
    width:100%;
}
li{
    list-style: none;
}